Task #2465 - Check and add

There are 4 images added to the document. Not all of them have a title attribute.
Write an internal script that checks if images have this attribute.
If it does not exist, add it with a value equal to the alt attribute of the image.
Use the internal script.

This task is part of the Full-Stack JavaScript Course
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index.html

<!DOCTYPE html>
<html>
  <head>
    <title>My teachers</title>
  </head>
  <body>
    <h2>My teachers</h2>
    <div class="section">
      <img src="https://learn.coderslang.com/avatar Fei.svg" alt="Fei">
      <img src="https://learn.coderslang.com/avatar Sigma.svg" title="Mrs Sigma" alt="Sigma">
      <img src="https://learn.coderslang.com/avatar Professor.svg" title="Mr Professor" alt="Professor">
      <img src="https://learn.coderslang.com/avatar Technic.svg" alt="Technic">
    </div>
  </body>
</html>